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Improving nutrient efficiency use through conversion to organic farming, Madagascar [PDF]

open access: yes, 2014
Alvarez, Stéphanie   +3 more
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Nutrient transformations during composting of pig manure with bentonite

Bioresource Technology, 2012
This work aimed to evaluate the influence of different amounts of bentonite on nutrients transformation during pig manure composting process. The results showed that bentonite had no significant effects on compost temperature and pH changes. While, EC, moisture, OM, TN and NO(3)(-)-N were notably influenced by BT addition.
Ronghua Li   +2 more
exaly   +3 more sources

Concentrations of additive arsenic in Beijing pig feeds and the residues in pig manure

Resources, Conservation and Recycling, 2005
The swine industry in China has grown rapidly over last two decades. Great amount of pig manure is generated in China, which can be used as organic fertilizers on agricultural lands. Meanwhile, the organic arsenic compounds have been used as feed additives for swine disease control and weight improvement.
Tong-Bin Chen
exaly   +2 more sources

The role of microbiota during chicken manure and pig manure co-composting

Bioresource Technology, 2023
Co-composting is an excellent and effective technology for treating livestock manure in which microorganisms play a crucial function. Therefore, this study aimed at investigating the changes of microbial interactions during co-composting. Six different addition ratios of chicken and pig manure were used in composting experiment. The results showed that
Feng Wang   +5 more
openaire   +2 more sources

Chemical and microbiological characterization of pig manures and digestates

Environmental Technology, 2021
Livestock and poultry breeding modes, feed compositions and manure collection systems have regional characteristics, which can directly affect the composition of livestock and poultry breeding manure, energy production by anaerobic digestion and resource utilization of products.
Ke, Sun   +7 more
openaire   +2 more sources

Degradation of doxycycline in aged pig manure

Acta Veterinaria Hungarica, 2011
Two types of studies were carried out to characterise the degradation rate of doxycycline in manure. In the laboratory experiment, pig manure containing doxycycline was stored in biochemical oxygen demand (BOD) bottles in a thermoregulated room at a temperature of 20 ± 3.5 °C to maintain the humid and anaerobic incubation conditions, and the relevant ...
Szatmári, István   +2 more
openaire   +3 more sources

Co-Composting of Pig Manure with Leaves

Environmental Technology, 2001
The increase in the market price of sawdust makes it a less attractive bulking agent for pig manure composting. Hence, it was the aim of this project to evaluate the feasibility of co-composting pig manure with leaves with special emphasis on its effects on compost maturity and quality. Two piles were prepared with one pile (Pile A) just constituted of
G F, Huang   +5 more
openaire   +2 more sources

Composting of Cattle and Pig Manure

Journal of Veterinary Medicine, Series B, 1993
SummaryStudies of solid manure treatment on 83 Swedish dairy farms showed that no composting process occurred in the majority of cases while high temperatures could be found in the manure in 27 of 34 piglet producing farms. It was found that at least 2.5 kg of straw per cow and day must be used to get a manure that can be composted without forced ...
openaire   +2 more sources

Biochar-mediated sorption of antibiotics in pig manure

Journal of Hazardous Materials, 2019
Using manure contaminated with antibiotics as fertilizer is a primary source of soil pollution with antibiotics and concomitantly with antibiotic resistance genes (ARG). Bioavailable antibiotics trigger further ARG amplification during manure storage. Consequently it is aimed to facilitate the immobilization of antibiotics in manure.
A.N. Ngigi, Y.S. Ok, S. Thiele-Bruhn
openaire   +2 more sources

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